Railroad switch



May 29, 1923; 1,457,229

A M. ROBINSON RAILROAD SWITCH Filed May 12, 1922 2 Sheets-Sheet 1 Il /U May 29, 1923. 1,457,229

M. ROBINSON RAILROAD SWITCH Patented May 29, 1923.

MARION ROBINSON, OF PRINCETON, "WEST VIRGINIA, ASSIGNOR OF ONE-HALF TO r MRS. LOUISA MABKLAND, F JENKINS, KENTUCKY. f

RAILROAD SWITCH.

ToaZZ whom it may concern:

' inconnection with sidings and adapted to be employed in reference to traclra'ge designed for mine cars and thelikeas a means of adapt ng each car as it approaches the main line to close the switch permitting passage on to the main line and the resetting of the switch to open the main line for use by other ca'rstraversingthe track; and with this general object in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein t t Figure 1 is a plan view of a portion of a track havingfa switch mechanism embodying the invention arranged in operative relation therewith.

Figure 2 is a side view of the switch mechanism as applied and showing in connection therewith a car carried actuating device for use in setting the same.

Figure 3 is a detail in perspective of the rocker by which motionis communicated to the switch rails.

Figure 4 is a similar view of one of the trips. a I

Figure 5 is a similar view of a trip actuator adapted to be carried by the rolling stock.

Figure 6 is a detail in perspective of the actuator.

The trackage illustrated in the drawing includes the-main line rails or sections 10, the siding rails 11 and pivotal switch rails 12 for respective and alternate arrangement in operative relation with the main rails to-either open the main track or open the siding. The switch rails are connected by a switch bar 13 having connection with a radial arm 14- of a rocker 15 mounted in a p the other arms 18 of said rocker are respec- Application filed May 12, 1922; Seria1, I T0. 560,319.

tively connected byqrods 19 or the equivalents thereof with trips 20 pivotally mounted on suitable brackets 21 adjacent to a siding rail within the switch and adjacent .to a main line rail outside of the switch These tripsare pivotally mounted as indicated at 22 for movement'in a common direction to respectively open the siding and open, the main line sothat a car coming out of the, siding on to the main line which actuates the trip withinthe siding as it approaches the switch rails serves to set the switch rails; to:

connect the. siding with the main track, and as the car progresses for a further operating means or a further operation of the same operating means is caused to engage the trip outside of or beyond the siding to move thev trip in the same direction as the car, the

switch rails will be reset to open the main line and close the switch.

means indicated at 27, and an operating or hand lever 28 fulcrumed as at 29 and having connection with said plunger as indicated in Figure 5 by the arrangement of its terminal in asuitable opening 30 of the plunger rod. The latter also preferably carries at its lower end an anti-friction roll 31 for contact withthe beveled surfaces 32'of the trip. It will beunderstoodvthajt in entering a siding a car equipped with asuitable actuating device such as thatherein described and illustrated in Figures 5 and 6 may be caused to first open the switch to permit of entering the siding and then of closing the siding to open the main line by-a reverse movement of the switch tongues through successive movements in the same direction of the trips but in the opposite direction to that required in leaving or passing out of the siding. I

Furthermore as a means of maintaining the switch members in their set positions to open either the main line or the sidingeach' trip which is pivoted as above indicated at 22 is extended to form a rock arm 33 carrying an anti-friction roll 34 for traversinga' v j 15 In the construction illustrated the rmeans bowed spring 35 secured in any suitable or convenient manner to the ties or other convenient objects in such a position that the roller of the rock arm traverses the spring and is impelled by the latter to yieldingly hold the trip in either of its terminal or set positions and to continue the shifting movement of the trip in either direction to the end of its movement in that direction to thus serve as a full stroke controlling means, to the end that the switch may not be left in a halt open or half closed position subject to engagement with the wheels and liable in practice to cause derailment or injury to the track; ge.

Having described the invention, what is claimed as new and useful is s 1. A switch mechanism for controlling the communication between a siding and the main line and including movable switch rails, having a rocker operatively connected with the switch rails for alternately positioning them in operative relation with opposite track rails and trips operatively connected with the rocker and located adjacent to the track rails respectively inside and outside of the siding for actuation in a common direction corresponding with the direction of movement of a car, for shifting the switch rails successively in opposite directions, each trip being provided with a beveled contact terminal and full stroke mechanism connected therewith for holding the trip alternately in its set positions.

2. A switch mechanism for controlling the communication between a siding and the main line and including movable switch rails, having a rocker operatively connected with the switch rails for alternately positioning them in operative relation with opposite track rails and trips operatively connected with the rocker and located adjacent to the track rails respectively inside and outside of the siding for actuation in a common direction corresponding with the direction of movement of a car, for shifting the switch rails successively in opposite directions, each trip being provided with a rocker arm arranged in operative relation with a bowed spring for locking the same in'its adjusted positions and impelling the rocker from an intermediate to its terminal position.

A switch mechanism for controlling the communication between a siding and the main line and including movable switch rails, a rocker, means for actuating said switch for alternately positioning them in operative relation with opposite track rails, trips operatively connected with said means and located adjacent to the track rails respectively inside and outside of the sidingnature.

MARION ROBINSON. 

